I think mine is pretty obvious.
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Master Desann from Jedi Knight II: Jedi Outcast, the game with one of the best single-player campaigns ever. His character is the complete opposite of mine, though. I like him because he is challenging the system, and because of his cool looks and voice (no homo). I've always found villains (or anti-heroes, especially) to have more in-depth characters than the good guys, be it in video games, movies, or whatever.